I am recieving no error when this runs but the edited values don't save and revert when viewed again

Question

I am trying to update records in a database but when I run my code, the updated records don't save

    conn = sqlite3.connect('test.db')
    c = conn.cursor()
    c.execute("""UPDATE stock SET StockName = :sname, StockPrice = :sprice, StockNumber = :snumber WHERE StockID = :StockID""",
            {
                'sname': stockname_entry.get(),
                'sprice': stockprice_entry.get(),
                'snumber': stocknumber_entry.get(),
                'StockID': stockid_entry.get(),
            })
            
    conn.commit
    conn.close